diff --git a/mm/vmscan.c b/mm/vmscan.c
index 1be5a63..92573b7 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -489,7 +489,8 @@ static unsigned long shrink_page_list(struct list_head *page_list,
 		 * Anonymous process memory has backing store?
 		 * Try to allocate it some swap space here.
 		 */
-		if (PageAnon(page) && !PageSwapCache(page))
+		if (PageAnon(page) && !PageSwapCache(page) &&
+		    !PagePrivate(page))
 			if (!add_to_swap(page, GFP_ATOMIC))
 				goto activate_locked;
 #endif /* CONFIG_SWAP */